# Test multiple CREATE INDEX CONCURRENTLY working simultaneously

setup
{
  CREATE TABLE mcic_one (
	id int
  );
  CREATE TABLE mcic_two (
	id int
  );
  CREATE FUNCTION lck_shr(bigint) RETURNS bool IMMUTABLE LANGUAGE plpgsql AS $$
     BEGIN PERFORM pg_advisory_lock_shared($1); RETURN true; END;
  $$;
  CREATE FUNCTION unlck() RETURNS bool IMMUTABLE LANGUAGE plpgsql AS $$
     BEGIN PERFORM pg_advisory_unlock_all(); RETURN true; END;
  $$;
}
teardown
{
  DROP TABLE mcic_one, mcic_two;
  DROP FUNCTION lck_shr(bigint);
  DROP FUNCTION unlck();
}

session "s1"
step "s1i"	{
		CREATE INDEX CONCURRENTLY mcic_one_pkey ON mcic_one (id)
		WHERE lck_shr(281457);
	}
teardown	{ SELECT unlck(); }


session "s2"
step "s2l"  { SELECT pg_advisory_lock(281457); }
step "s2i"	{
		CREATE INDEX CONCURRENTLY mcic_two_pkey ON mcic_two (id)
		WHERE unlck();
	}

permutation "s2l" "s1i" "s2i"
